Somewhere you might come across the idea that the Form is your teacher.
In my own experience this means that you need to listen to the subtle feedback of your mind/body as you investigate your form. It means being open to the slightest nuances, the "oh that's interesting" moment as you make a discovery.
After having learnt a form, don't just parrot it. Investigate it. Find out what makes it "tick", what is going on, what are the connections etc.